13 Determination of Mixed-Mode (I/III) Fracture of Polycarbonate 79 Fig. 13.2 Typical engineering stress-strain response of PC under uniaxial tension using ASTM D638–14 Table 13.1 Material properties of PC Elastic modulus (GPa) Poisson’s ratio Yield stress (MPa) 2.41 0.418 63.7 0 20 40 60 80 0 0.1 0.2 0.3 0.4 True stress (MPa) True strain 0 0. 0 0. 0 0. 0 B D A C O 0. 1 2 3 4 Fig. 13.3 True stress—true strain response of PC under uniaxial tension Fig. 13.4 Finite element model input material response. Then, the spiral crack was added, and the finite element model with mesh is shown in Fig. 13.4b, c. Details regarding the finite element model and the boundary conditions can be found in previous work [19, 20].
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